#include<iostream.h> #include<stdlib.h> #include<iomanip.h> #include<string.h> #include<fstre

#include<iostream.h> #include<stdlib.h> #include<iomanip.h> #include<string.h> #include<fstream.h> int i; void Libary();//被调用函数

//----------------图书Book类--------------------------- class book { private: int book_code,book_price; char book_name[30],book_author_name[30],book_publishing_date[30]; public: int get_book_code() //获取图书代码 { return book_code; } char get_book_name() //获取书名 { return book_name; } char get_book_author() //获取作者名 { return book_author_name; } char get_book_publishing_date() //获取出版日期 { return book_publishing_date; } int get_book_price() //获取图书价格 { return book_price; }

void getbook() //接受图书的输入的信息 { cout<<"ADD NEW BOOK/PERIODICAL DETAILS"<<endl; book_code=i; cout<<Book code:"<<book_code<<endl; cout<<"Enter Book/Periodical name:"; cin>>book_name; cout<<"Enter Author Name:"; cin>>book_author_name; cout<<"Enter Publishing date:"; cin>>book_publishing_date; cout<<"Enter price:"; cin>>book_price; } void showbook() //输出图书有关信息 { cout<<"Book code:"<<book_code<<endl; cout<<"Book/Periodical name:"<<book_name<<endl; cout<<"Author name:"<<book_author_name<<endl; cout<<"Publishin date:"<<book_publishing_date<<endl; cout<<"Price:"<<book_price<<endl; } }；

//---------------------图书派生类issue----------- class issue:public book { // };

//--------------------------期刊Periodical类----------------------//--------------------------期刊Periodical类---------------------- class Periodical { private: int periodical_code; char periodical_name[30],periodical_publisher_name[30],periodical_periosicity; public: int get_periodical_code() //获取期刊代码 { return periodical_code; } char get_periodical_name() //获取期刊名字 { return periodical_name; } char get_publisher_name() //获取出版商名字 { return periodical_publisher_name; } char get_periodicity() //获取期刊周期 { return periodicity; }

void getperiodical() //获取期刊信息 { cout<<"ADD NEW PERIODICAL DETAILE"<<endl; periodical_code=i; cout<<"Periodical code:"; cin>>periodical_code; cout<<"Enter Book/Periodical name:"; cin>>periodical_name; cout<<"Enter Publisher name:"; cin>>periodical_publisher_name; cout<<"Enter Periodicity<F/M/S/Y>"; cin>>periodical_periosicity; } void showperiodical() //输出有关信息 { cout<<"Periodical code:"<<periodical_code<<endl; cout<<"Enter Book/Periodical name:"<<periodical_name<<endl; cout<<"Enter Publisher name:"<<periodical_publisher_name<<endl; cout<<"Enter Periodicity:"<<periodical_periosicity<<endl; } };

//---------------主函数 --------------------- void main() { Libary(); // } //----------------被调用函数----------------------- void Libary() { END://使用goto语句的标号 Book p1; Periodical p2; Informations p3; Informations p5; int n;

char b; fstream file_book; fstream file_periodical; fstream file_issue; cout<<" LIBRARY MANAGEMENT SYSTEM"<<endl; cout<<"1. Add new Book details"<<endl; cout<<"2. Add new periodical details"<<endl; cout<<"3. Record Issue / Return details"<<endl; cout<<"4. Delete old periodical Issue details"<<endl; cout<<"5. View Available Books / Periodicals"<<endl; cout<<"6. Exit"<<endl; cout<<"Enter choice:"; cin>>n; switch(n) { case 1: file_book.open("book.dat",ios::out|ios::app); file_All(A,"book.dat"); A.getbook(); file_book.write((char *)&A,sizeof(book)); file_book.close(); break; case 2: file_periodical.open("periodical.dat",ios::out | ios::app); file_All(B,"periodical.dat"); B.getperiodical(); file_periodical.write((char*)&B,sizeof(periodical)); file_periodical.close();

break; case 3: file_issue.open("issue.dat",ios::out|ios::app); file_All(C,"issue.dat"); C. break; case 4: Delete_Booking(); //用指针实现 break; case 5: cout<<"VIEW AVAILABLE BOOKS/PERIODICAILS"<<enld; cout<<"View Books orPeriodicals?<B/P>:"; cin>>b; if(b=='B'||b=='b') { p1.showbook(); //查看图书 goto END; } else { p2.showperiodical() ; //查看期刊 goto END; } break; case 6: exit(-1); } }

#include<iostream.h> #include<stdlib.h> #include<iomanip.h> #include<string.h> #include<fstre